DBA: Iron Horse Truck Services
William Irvin Kenneth Sheriff is an active interstate carrier based in Maple Valley, WA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 1 | 0 | 0 |
| Tractors | 1 | 0 | 0 |
| Trailers | 1 | 0 | 0 |
| Total Power Units | 1 | ||
This carrier doesn't meet FMCSA's minimum-inspection threshold for SMS scoring. No safety measures or alerts are published.
FMCSA SMS computes BASIC scores after carriers reach a minimum inspection threshold (typically 5+ in 24 months). This carrier hasn't reached that threshold.
View carrier on FMCSA SAFER| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 0% | 0% | Better than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 91% | 86% | Worse than most peers |
Lower percentile = lower SMS measure = stronger safety record. Computed nightly across active carriers in the same state and fleet-size band.
No roadside inspections recorded in the past 24 months. See the registry timeline above for the carrier's activity history.
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 2 | 0 | 2 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Apr 18, 2024 | CA | STRAIGHT TRUCK | 0 | 0 |
| Apr 17, 2024 | CA | TRUCK TRACTOR | 2 | 2 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Apr 17, 2024 |
| 39348A |
| Inoperative/defective brakes |
| Vehicle Maintenance |
| Yes |
| Apr 17, 2024 | 3965BHWSLIW | Hubs - Wheel seal leaking - inner wheel | Vehicle Maintenance | Yes |